The BLAMM Lo-Drag Datacard System™ utilizes a smaller diameter, dual core, arm that allows for half of the clearance requirements of the standard Datacard system, coming it at 3/16"! However, it may scratch your rail and is a little harder to install. Fair warning. If you have at least 3/8" of clearance I suggest you go with the original BLAMM for the thicker arm and ease of installation.
It is optimized for the long range competitive shooting environment. Made to withstand harsh environments it utilizes all stainless-steel hardware and tough PETG plastic. Its carefully thought out design requires no permanent modifications to your rifle by firmly attaching to any standard rail and quick removes with just one screw.
The reusable Datacards eliminate the need to remember paper cards that are easily ripped or soaked and mark easily with the included grease pencil. The markings are waterproof yet wipe off easily with a soft cloth for your next stages data.
The small diameter, dual core, flexible arm greatly reduces the risk of breaking while in use unlike solid arm solutions. It quickly bends where you need it and stays put for whatever your course of fire demands. Custom arm lengths can be achieved by following the instructions included.
The kit includes: BLAMM Datacard Lo-Drag mount, grease pencil, two Datacards with velcro, and a 2mm hex wrench.